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Finding the Third Proportional to 282,342 and 620,664

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Solution

The third proportional to 282,342 and 620,664 is: 1,364,387.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,342 : 620,664 = 620,664 : x
  2. Step 2: Convert to fraction form
    282,342/620,664 = 620,664/x
  3. Step 3: Cross multiply
    282,342x = 620,664 × 620,664
  4. Step 4: Simplify right side
    282,342x = 385,223,800,896
  5. Step 5: Solve for x
    x = 385,223,800,896/282,342
  6. Step 6: Final answer
    x = 1,364,387.16

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.